Device for burning liquid combustible wastes

ABSTRACT

A device for burning liquid combustible wastes, comprising a barbotage bath having air-guiding elements uniformly spaced on the bottom of the bath. The elements are constructed in the form of a block of guiding nozzles freeley installed in verticlal branch pipes communicating with an air-supplying head of the device.

Filippov et a1.

DEVICE FUR BURNING LIQUID COMBUSTIBLE WASTES Inventors: Vladimir Ivanovich Filippov, ulitsa 8 Marta, 2/10, kv. 93, Moscow; Mikhail Vasilievich Sumarokov, ulitsa kirova, Kvartal 116, korpus 26, kv. 38, Ljubertsy Moskovskoi oblasti, both of USSR.

Filed: Nov. 14, 1973 Appl. No.: 415,901

Foreign Application Priority Data [56] References Cited UNITED STATES PATENTS 245,062 8/1881 Crocker 431/335 3,671,167 6/1972 Nakano l i 431/190 3,752,224 8/1973 Sproul l 110/8 R 3,782,300 1/1974 White et a1. 110/8 R Primary Examiner-Carroll B. Dority, Jr. Attorney, Agent, or Firm-Holman & Stern [57] ABSTRACT A device for burning liquid combustible wastes, comprising a barbotage bath having air-guiding elements uniformly spaced on the bottom of the bath. The elements are constructed in the form of a block of guiding nozzles freeley installed in verticlal branch pipes communicating with an air-supplying head of the device.

1 Claim, 3 Drawing Figures NOV. 15, 1972 U.S.S.R 1845735 US. Cl. 431/331, 110/7 S, 431/190, 431/335, 261/124 Int. (31. F23d 5/02 Field Of Search 431/190, 331, 335; 110/7 S, 7 R, 8 R

PATENTEL HEY 1 W4 1 3.849.059 sum 10F 2 BACKGROUND OF THE INVENTION DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS The device for burning liquid combustible wastes ac- The present invention relates to devices for burning 5 cording to the invention Comprises a combustion Cham' liquid combustible wastes, watered oil product wastes, and drainage water of industrial plants.

A device for burning liquid combustible wastes is known in the art and comprises a bath having a barbotage grid, with a combustion chamber being located above it. The chamber has nozzles for supplying secondary air. The bath and the combustion chamber are of annular form, and the barbotage grid is equipped with air-guiding elements for imparting rotational motion to the liquid wastes.

Generally the air-guiding elements are constructed in the form of angles or pipes perforated with a large number of holes.

As has been shown by experience, these holes become clogged and coked in the process of burning the wastes thence a need arises to clean the holes, and sometimes even to replace the air-guiding elements resulting in complete reconstruction of the barbotage bath, i.e. cutting out the damaged burnt-out units and welding new air-guiding elements.

In addition, the air-guiding holes in the devices described above are disposed so that the air emitted from them .is directed upwards or parallel to the bottom of the barbotage bath resulting in a low air utilisation coefficient.

SUMMARY OF THE INVENTION An object of the above present invention is to eliminate the mentioned disadvantages.

Another object of the invention is to increase the efficient utilization of air in burning liquid combustible wastes.

Still another object of the invention is to facilitate cleaning of the barbotage grid and the air-guiding holes when they are clogged.

The above objects are attained in a device for burning liquid combustible wastes comprising a combustion chamber and a barbotage grid located under it, and having air-guiding elements communicating with the air supplying head, wherein, according to the invention, the air-guiding elements are constructed in the form ofa block of guiding nozzles freely installed in the vertical branch pipes uniformly spaced along the bottom of the bath and communicating the air supplying head, with the guiding nozzles being installed so that they are substantially inclined with respect to the bottom of the bath.

BRIEF DESCRIPTION OF THE DRAWINGS A more detailed description of the device of the invention for burning liquid combustible wastes is given below taken with reference to the accompanying drawings, wherein:

FIG. I is a diagrammatical general view of the device;

FIG. 2 is a plan view of a portion of the barbotage bath having air-guiding elements, according to the invention;

FIG. 3 is a sectional view of FIG. 2 along line III-III.

ber l. FIG. 1), an air-supplying head 2, air-guiding elements 3 for imparting rotational motion to the liquid combustible wastes located on the bottom of the barbotage bath.

In the process of operation of the device a foam layer of waste (shown in FIG. 1 by an undulated line, is formed in the combustion chamber 1. due to the air supplied therein, resulting in an intensive burning process.

The air-guiding elements 3 (FIG. 2, 3) are constructed as a block of guiding nozzles uniformly spaced along the bottom of the bath. The block of air-guiding elements 3 is freely installed in the vertical branch pipes 7 communicating with the air-supplying head 2.

The guiding nozzles 6 are inclined to the bottom of the bath at a predetermined angle a. The inclination of the nozzles 6 to the barbotage bath 4 results in a rational utilisation of air in the process of burning.

The number of air-guiding elements 3 is selected depending on the required capacity of the device.

The device operates in the following manner.

The barbotage bath is filled with a layer of hot wastes which is barbotated by the air coming out of the nozzles 6. As a result of the'directional barbotage, the layer begins rotate due to the impact pulses received from the air bubbles being emitted from the nozzles uniformly located on the bottom of the bath.

The turbulent flow of liquid combustible wastes running through the air-guiding barbotage elements warrants an intensive mixing and averaging of the wastes in any point of the layer, an effective destruction of foam and eliminates the need for sump areas. The inclination of nozzles 6 to the bottom of the bath 4 provides a longer trajectory for the air bubbles which increases the coefficient of air utilisation. The inclination of nozzles 6 contributes also to a better utilisation of air when purging the bottom of the bath in order to clean it. An equal distance between the outlet slots of the nozzles 6 and the bottom of the bath 4 provides uniform conditions for the outgoing air which tends in any case to take the path of minimum resistance.

Upon completing the burning process the nozzle blocks are easily removed from the branch pipes 7 to be cleaned. The operation of inspecting the air-guiding elements 3 takes several minutes.

What is claimed is:

l. A device for burning liquid combustible wastes, comprising: a combustion chamber containing a barbotage bath; a plurality of air-guiding; element disposed in said chamber for imparting rotational motion to liquid combustible wastes contained therein; an air-supplying head disposed beneath the barbotage bath of said chamber; a plurality of branch pipes vertically installed and uniformly spaced along the bottom of the said bath for permitting communication between said air supplying head and said air-guiding elements, each of said airguiding elements being constructed as a block of guiding nozzles located beneath the surface of said bath and freely installed in respective ones of said branch pipes for rotation in a horizontal plane, said nozzles being substantially inclined downwardly with respect to the bottom surface of said barbotage bath. 

1. A device for burning liquid combustible wastes, comprising: a combustion chamber containing a barbotage bath; a plurality of air-guiding element disposed in said chamber for imparting rotational motion to liquid combustible wastes contained therein; an air-supplying head disposed beneath the barbotage bath of said chamber; a plurality of branch pipes vertically installed and uniformly spaced along the bottom of the said bath for permitting communication between said air supplying head and said airguiding elements, each of said air-guiding elements being constructed as a block of guiding nozzles located beneath the surface of said bath and freely installed in respective ones of said branch pipes for rotation in a horizontal plane, said nozzles being substantially inclined downwardly with respect to the bottom surface of said barbotage bath. 